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Ultrasonic velocity, conductivity, viscosity and calorimetric studies of copper(I) and sodium perchlorates in cyanobenzene, pyridine and cyanomethane

Gill, D.S., Singh, P., Singh, J., Singh, P., Senanayake, G. and Hefter, G.T. (1995) Ultrasonic velocity, conductivity, viscosity and calorimetric studies of copper(I) and sodium perchlorates in cyanobenzene, pyridine and cyanomethane. Journal of the Chemical Society, Faraday Transactions, 91 . pp. 2789-2795.

Link to Published Version: http://dx.doi.org/10.1039/FT9959102789
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Abstract

Ultrasonic velocities (u), densities (), viscosities (), molar conductivities () and enthalpies of solution (solH) of CuClO4 and NaClO4 have been measured in cyanobenzene, pyridine and cyanomethane at 298, 308 and 318 K. These data have been used to calculate isentropic compressibilities (s) of the salts and limiting ionic conductivities (oi), solvated ionic radii (ri) and solvation numbers (n) for Cu+, Na+ and ClO4–. Cu+ is highly solvated in all three solvents with solvation decreasing in the order pyridine > cyanomethane > cyanobenzene. Na+ in all solvents is relatively less solvated and the solvation decreases in the order cyanomethane ? cyanobenzene ? pyridine. The ClO4– ion is poorly solvated in all three solvents. s and solHo data indicate that NaClO4, in spite of its poor solvation in pyridine, shows strong structural effects which are attributed to strong pyridine–pyridine interactions.

Publication Type: Journal Article
Murdoch Affiliation: School of Chemical and Mathematical Science
Publisher: Royal Society of Chemistry
URI: http://researchrepository.murdoch.edu.au/id/eprint/1525
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